Oh, everyone can participate. This is a public forum. But if you don't want me commenting sarcastically about your posts, you may show some actual interest in the matter or some level of basic minimal background knowledge. See, when you say "turn them out", you clearly don't realise that many of these are nationals. You cannot turn out citizens. For starters, you wouldn't know where to send them to, as your country is their home country. The default place to send them to is... the country they're already in. And even if you decide to... dunno, just dump them in the ocean (as some already suggested), there's too many of them. You can dump the first boatload, but by the time you get back to the harbour to pick up the next load, you're coming back to an actual civil unrest. Then we're not talking terrorism anymore, then we're talking European civil war (because Muslims in other countries might take the cue and defend before they're deported to the bottom of the sea).
Guess what? That's the actual win condition for ISIS. Usually I say terrorism has no win condition, that's why you cannot "win" against them, but if terrorism had a "win condition" in a game theory type of way, civil war in Europe would be it.
Btw, while we're talking about what other people think, you cannot actually punish a terrorist. There is no physical way for us to do it. If you torture them, you prove them right (in that the west is evil). If you kill them, again, you prove them right (that the west is evil) and congratulations, you also gave them one more martyr that they can use for recruitment. If you imprison them, you're again proving them right (west is evil and shit).
I've recently begun talking about 2 second thoughts. What I mean by them is if someone like you sits in front of a monitor and is faced with a simple question like "how do you stop terrorism in Europe?" People like you then take literally 2 seconds and come up with "Just send them away" and think themselves absolutely brilliant.
But then they're faced with me asking "Send who away? And where? And how?" and they get frustrated, because a) I don't agree with them, b) they don't know why I'm not agreeing with them and what's worst, c) they can't actually come up with a half-decent answer to these questions.